1,721,206 research outputs found
The First Genome-Wide Mildew Locus O Genes Characterization in the Lamiaceae Plant Family
No full textPowdery mildew (PM) is a widespread plant disease that causes significant economic losses in thousands crops of temperate climates, including Lamiaceae species. Multiple scientific studies describe a peculiar form of PM-resistance associated at the inactivation of specific members of the Mildew Locus O (MLO) gene family, referred to as mlo-resistance. The characterization of Lamiaceae MLO genes, at the genomic level, would be a first step toward their potential use in breeding programs. We carried out a genome-wide characterization of the MLO gene family in 11 Lamiaceae species, providing a manual curated catalog of 324 MLO proteins. Evolutionary history and phylogenetic relationships were studied through maximum likelihood analysis and motif patter reconstruction. Our approach highlighted seven different clades diversified starting from an ancestral MLO domain pattern organized in 18 highly conserved motifs. In addition, 74 Lamiaceae putative PM susceptibility genes, clustering in clade V, were identified. Finally, we performed a codon-based evolutionary analysis, revealing a general high level of purifying selection in the eleven Lamiaceae MLO gene families, and the occurrence of few regions under diversifying selection in candidate susceptibility factors. The results of this work may help to address further biological questions concerning MLOs involved in PM susceptibility. In follow-up studies, it could be investigated whether the silencing or loss-of-function mutations in one or more of these candidate genes may lead to PM resistance
Genetic diversity in tomato pathogen resistance genes. Workshop “Genetic diversity in tomato” ENEA, Casaccia Research Center, June 18, 2007.
No full textThe SRG database: a bioinformatic platform to answer questions about plant-pathogen interaction. Plant & Animal Genomes XV Conference, 13/17 January, 2007, San Diego, California.
No full textconvenzione per l’esecuzione di un programma di ricerca sull’individuazione di geni per la resistenza/tolleranza ai virus dell’accartocciamento fogliare giallo del pomodoro (TYLCSV e TYLCV)
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Analisi molecolare e biochimica di genotipi di pomodoro da mensa per caratteristiche qualitative
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Joint research project between the 'University of Naples "Federico II" and the Wageningen University Laboratory of Plant Breeding “Powdery mildew resistance conferred on Research by QTLs in tomato”.
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